US3653720A - Hydraulic transportation system - Google Patents

Hydraulic transportation system Download PDF

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Publication number
US3653720A
US3653720A US16501A US3653720DA US3653720A US 3653720 A US3653720 A US 3653720A US 16501 A US16501 A US 16501A US 3653720D A US3653720D A US 3653720DA US 3653720 A US3653720 A US 3653720A
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United States
Prior art keywords
chamber
conduit
waste
water
solids
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US16501A
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English (en)
Inventor
Sam N Craig
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Wascon Systems Inc
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Wascon Systems Inc
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Assigned to HOBART CORPORATION A CORP OF DE. reassignment HOBART CORPORATION A CORP OF DE. ASSIGNS AS OF JANUARY 22, 1985 THE ENTIRE INTEREST Assignors: HOBART CORPORATION
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    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
    • E03F1/006—Pneumatic sewage disposal systems; accessories specially adapted therefore
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F5/00—Gathering or removal of refuse otherwise than by receptacles or vehicles
    • B65F5/005—Gathering or removal of refuse otherwise than by receptacles or vehicles by pneumatic means, e.g. by suction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/30—Conveying materials in bulk through pipes or tubes by liquid pressure

Definitions

  • Valves are used to discontinue the flow to the [22] :J. S.C(iI ..302/l5 Chamber, and to open a solids inlet to the chamber with ⁇ he 5 f valves then being actuated to close the solids inlet and to open 1 0 l l l the chamber to the flow of water.
  • the water may [56] References cued then carry off the waste.
  • the present invention is directed toward overcoming the above, and other problems, in providing a hydraulic transportation system for waste conveying, that is adaptable to an entire community, wherein a main trash disposal duct is utilized by numerous households, or other locations of trash accumulation, and wherein each such situs of trash accumulation is provided with an apparatus for introducing trash into a pipe line, for carrying OK the trash.
  • a by-pass line is utilized, with valves for terminating the flow of water in such by-pass line under an arrangement that permits introduction of trash into the by-pass line, with such valves then being opened to permit flow of water and trash thus introduced into the by-pass line, into the main disposal duct or conduit.
  • FIG. 1 is a diagrammatic perspective view of a portion of a hydraulic transportation system in accordance with this invention, wherein a single trash inlet location is illustrated, along with basic operational components therefor.
  • FIG. 2 is a view generally similar to portions of FIG. 1, but wherein an alternative means is utilized for introducing trash into a by-pass line of the main duct.
  • FIG. 3 is a vertical sectional view through a typical valve utilized in accordance with the embodiments of FIGS. 1 and 2.
  • FIG. 4 is a vertical sectional view taken through a portion of a modified form of a hydraulic transportation system.
  • FIG. 1 wherein there is illustrated a main water duct generally designated by the numeral 10, that would comprise the main duct for a community or the like, for conveying waste solids from a plurality of residences, stores or the like thereof.
  • the main duct 10 would comprise a large pressure tight pipe, for example, of 3 feet or greater in diameter, that would normally run down the center of the street in a given community.
  • the duct 10 is pressurized for carrying water therethrough at a pressure of approximately 50 pounds per square inch. This duct 10 would normally be running full of water at all times.
  • a reduced diameter pipe section 11 would be provided, as a means for creating a pressure drop between upstream and downstream pipe sections 12 and 13 respectively.
  • the reduced diameter section 11 may comprise a zone of reduced interior pipe cross-section, or a throat, which would restrict the passage of water through the pipe 10, to create the high pressure in the upstream end 12 of the pipe, which high pressure would prevail in water conveyed through a by-pass conduit 14, to facilitate introduction of the high pressure water into the lower pressure section 13 of the pipe 11, at a point located at predetermined distance from the throat 11 that would facilitate the re-entry of high pressure water into the pipe 13.
  • the by-pass conduit 14 may comprise piping for example of 18 inch diameter.
  • a pair of valves 15 and 16 are located in the conduit 14, each such valve being constructed in any desired manner, but preferably along the lines of one illustrated in FIG. 3.
  • a gate valve is illustrated, comprising a housing 17 to which is connected the conduit 14, on opposite sides thereof, with the housing also having a gate 18 slidable therein, to completely close off a section of the conduit 14, when in the position illustrated in FIG. 3.
  • the gate 18 is carried on a rod 20 and is spring-biased by means of a spring 21 in the downward position illustrated in FIG. 3.
  • the gate 18 is movable upwardly, as indicated by the arrow 22 of FIG. 2, against the force of the spring 21, to open the passageway 23 of the conduit 14 through the valve 15, when actuated by means of a solenoid 24, or the like.
  • the zone 25 of the conduit 14 as located between the valves 15 and 16, comprises a chamber in its interior, that communicates with an inlet line or duct 26, across the valve'27, which valve 27 is also constructed generally in the manner illustrated in FIG. 3.
  • the duct 26 may have a conical inlet 29 or the like, as desired, and would normally be located with a residence to be served by the system illustrated.
  • a pump 28 is provided, for clearing water out of the chamber 25, through a line 30, and for interjecting the same into the conduit line 14, on the downstream side of the chamber 25, through a line 31.
  • Waste would be placed into the top of the vertical duct 26, in a condition of the system such that all of the valves 15, 16, and 27 are closed.
  • the homeowner would then actuate the horizontal valve 27, allowing the waste to drop directly into the chamber 25, which would at this point contain no water.
  • the valve 27 would be closed, and both lower valves 15 and 16 would be opened, to allow water from the duct 10, which would then have passed into the upstream end of the conduit 14, to flood the chamber 25, thereby washing solid waste into the downstream side of the conduit 14, and then into the downstream portion 13 of the duct 10, because of the difference between the pressure of water conveyed through the conduit 14, relative to the lower pressure in the downstream side 13 of the duct 10, as is effected by the use of a pressure reducing means such as the constriction 11.
  • valves 15 and 16 would be actuated by their solenoids to close, trapping water within the chamber 25.
  • the pump 28 would then be actuated to extract the water from the chamber 25, through the line 30, and to interject such water through the line 31, back into the downstream side of the by-pass conduit 14.
  • the upper valve 27 may then be opened to receive additional waste into the chamber 25.
  • This system permits entry of waste into a chamber that does not already have water in the chamber. If the waste that were to be carried away was sufficiently dense that it would immerse itself in water, and did not contain other items that were lighter in weight than water, such as paper particles and the like, then there would normally be no problem of introducing waste directly into the by-pass duct 14, without the use of the valves 15, 16 and 27. However, most waste comprises a heterogeneous mixture of metal, plastics, paper and cardboard components, some of which are lighter than water, and which would not readily be carried off, without the use of the arrangement discussed above.
  • various comminuting apparatus such as a pulping tanks as disclosed in application Ser. No. 580,445, filed Sept. 20th 1966, now U.S. Pat. No. 3,489,356 which may pulp the solid carried by the main duct l'into the slurry form, which slurry may then be subsequently ground, if desired, or may be compressed at some stage, by the use of a press such as that disclosed in U.S. Pat. No. 3,426,677, if desired.
  • FIG. 2 Wlth particular reference to FIG. 2, there is illustrated a system generally similar to that of FIG. 1, but wherein an alternative method is provided for introducing solids into a by-pass conduit 32.
  • the conduit is provided with an upstream portion 32 which is connectable to a high pressure side of a main duct (not shown) and a downstream section 32" which is connected to a low pressure section of a main duct (not shown).
  • a pipe section 33 is connected in communicating relation with the conduit 32 by means of a piping T 34, with a valve 35, constructed generally along the lines of the valve illustrated in FIG. 3, being disposed between the T 34 and the chamber 33.
  • a vertical duct 36 is provided, which passed through another valve 37, which also is constructed along the lines of that illustrated in FIG. 3, for inlet of particles received into a conical hopper 38 or the like, for passing through the valve 37 when the same is in an open condition, and vertically downwardly into the chamber 33, as illustrated in FIG. 2.
  • a pump 40 is provided for evacuating water from the chamber 33 through a line 41, and for interjecting the same through a line 42, into the downstream section 32" of the by-pass conduit 32.
  • a pusher 43 is provided, in the form of a piston 44 connected to a rod 45, with the piston 44 being carried within a cylinder 46, and with the rod 45 having another piston 47 connected at its opposite end, with the piston 47 being disposed within a cylinder 48, and with drive means in a form of pneumatic lines 50 and 51 being provided, for receiving a fluid for driving the piston 47 back and forth, as desired, which in turn, will cause the pusher 43 to be actuated such that the piston 42 may traverse the chamber 33, for pushing solids and water disposed therein through the valve 35, and directly into the T" section 34 of the by-pass conduit 32.
  • valve 37 In order to allow waste to drop into the trash discharge chamber 33.
  • the valve 37 would then be closed by actuation of its solenoid by any suitable switching device located nearby the point of inlet of trash by the householder, such as the inlet point 38,
  • valve 35 would then be opened. All this time, water is being conveyed freely through the by-pass conduit 32. Thus, upon opening of the valve 35, water is free to flood the chamber 33, and to mix with the solids disposed therein.
  • the ram or pusher 43 is then actuated by the pneumatic means illustrated, such that the piston 44 traverses the chamber 33, and passes through the valve 35, to force waste and water from the chamber 33, into the T" 34.
  • the ram is then actuated in a reverse manner such that the piston 44 is then withdrawn.
  • valve 35 As soon as the piston 44 passes backwardly clear of the valve 35, the valve 35 is closed and the pump 40 is then actuated by the householder or the like, for evacuating water from the chamber 33 through the line 41, and for interjecting the same into the downstream section 32" of the duct 32 through the line 42.
  • the trash discharge chamber is then ready to receive trash once again, upon actuation of the valve 37.
  • an alternative system generally designated by the numeral 60 is provided, with the system 60 including a main duct 61 that does not have a pressure reducing throat such as that 11 of FIG. 1.
  • a by-pass conduit 62 is provided, that is disposed vertically above the main duct 61, approximately at an elevation of two feet thereabove, and with the by-pass conduit 62 being approximately eight feet in length, between its upstream point of communication 63 with the main duct and its downstream point of communication 64 with the main duct.
  • the by-pass conduit 62 includes a central portion or a chamber 65 that is disposed substantially parallel to and above the main duct 61, that is provided with valves 66 and 67, constructed in accordance with the construction of FIG. 3, as are the other embodiments of this invention. Also, a valve 68 is provided, for opening and closing a waste inlet chute 70 into and out of communication with the chamber 65.
  • a pump 71 is also provided, having a line 72 for withdrawing water within the chamber 65, when the valves 66 and 67 are closed, and for delivering water through a line 73, back into a downstream portion of the conduit 62, for introduction into the main duct 61.
  • the operation of the valves 66, 67, 68 and the pump 71, as well as the general operation of the system 60 by a householder, for introducing waste to be discarded into the chute 70, is identical with that set forth above with respect to the system of FIG. 1, so the same will not be repeated in detail here.
  • the system 60 of FIG. 4 is constructed to eliminate the need for a pressure reducing means of the throat type, for causing water to be introduced into the by-pass conduit 62.
  • the bypass conduit 62 is located close the main duct 61, and although the same is illustrated as being disposed vertically above the duct 61, such is for exemplary purposes only, such disposition of the conduit 62 being not necessary.
  • the distance of the main portion of the conduit 62, and especially that portion comprising the chamber 65, would be located within a predetermined distance from the main duct 61, so that the head (approximately ten to forty feet of pressure) in the main duct 61, at the point 63 of inlet communication with the by-pass conduit 62 will be sufficient to provide flow through the conduit 62, and
  • a pump 74 is provided, for supplying water from a suitable source 75, and being selected to have a capacity to deliver the desired head or pressure at any and each bypass conduit inlet location 63.
  • main duct 61 would ordinarily be utilized to provide flow at the desired pressure for a plurality of by-pass conduits, as for example, under a residential community, wherein the main duct 61 may be run beneath the houses at a given depth, with the by-pass conduits 62 being disposed above the main duct 61, but located also beneath the houses, thereby eliminating the necessity for extensive piping, as for example, inwardly from a street to the location of a residence.
  • the re-entry of water from the conduit 62 into the main duct 61 may be facilitated by a partial venturi effect, or partial vacuum caused by the passage of water across the opening 64, through the main duct 61, that has not been reduced noticeable in pressure, with the resultant partial vacuum or venturi assisting the inflow of water from the conduit 62, through the opening 64, into the main duct 61.
  • the venturi effect is generally insignificant in the arrangement of FIG. 4, relative to the velocity impact of water within the conduit 62, which is at a sufficiently high velocity due to the relatively short distance separating the conduit 62 and the main duct 61, to move dense material out of the chamber 65, and into the main duct 61.
  • a hydraulic transportation system for waste conveyance comprising a main duct for conveying solids therethrough in a pressurized water medium with means for creating a pressure drop in the main duct from a high pressure at a first location to a lower pressure at a second location downstream of said first location, a by-pass conduit having an inlet communicating with said main duct at said first location and an outlet communicating with said duct at said second location and being coextensive between said locations, and means for introducing solids into said by-pass conduit from outside thereof, wherein said by-pass conduit includes a chamber located in line therewith between said inlet and said outlet, for receiving waste solids therein and means for flooding said chamber with high pressure water carried in said by-pass conduit, with said introducing means also including delivery means being provided for delivering waste solids into said chamber, and valve means as part of said flooding means, actuatable to maintain in shut-off condition the supply of water into said chamber from said by-pass conduit while said delivery means to said chamber is open for introduction of solids into said chamber and to
  • a hydraulic transportation system for waste conveyance comprising a main duct for conveying solids therethrough in a pressurized water medium with means for creating a pressure drop in the main duct from a high pressure at a first location to a lower pressure at a second location downstream of said first location, a by-pass conduit having an inlet communicating with said main duct at said first location and an outlet communicating with said duct at said second location and being coextensive between said locations, and means for introducing solids into said bypass conduit from outside thereof, wherein said introducing means includes a chamber for receiving waste solids therein and means for flooding said chamber with high pressure water carried in said by-pass conduit, wherein said introducing means includes delivery means being provided for delivering waste solids into said chamber, and valve means as part of said flooding means actuatable to maintain said chamber closed to the water passing through said by-pass conduit while said delivery means to said chamber is open for introduction of solids into said chamber, and to maintain shut said delivery means when said chamber is open to said by-pass conduit and while water from said by-
  • said delivery means comprises a vertically extending duct adapted for gravity feed of solids into said chamber from a location of trash disposal.
  • valve means comprises two separate valves provided with actuation means operable from a point located remote from said valve means, near the inlet to said delivery means.
  • said pusher means comprises a piston and means for actuating the piston for traversing said chamber.
  • a hydraulic transportation system for waste conveyance comprising a discharge main, a conduit communicatively connected to said main for carrying waste thereinto and with means for supplying water to said conduit, a portion of said conduit being a chamber for receipt of waste therein through a waste-receiving inlet thereof and with said chamber being of substantially the same cross-sectional area as adjacent portions of the conduit at upstream and downstream ends of the chamber with said conduit being of substantially uniform cross-sectional area throughout its length, and of lesser crosssectional area than that of the main, and means for shutting off the flow of water in the conduit and opening said waste-receiving opening prior to placement of waste in the chamber through said waste-receiving opening and for resuming the flow of water in the conduit through the chamber and closing said waste-receiving opening after placement of waste in the conduit, for sweeping of waste into the main.
  • valve means comprise three separate valves provided with actuation means operable from a point located remote from said valve means.
  • conduit comprises a by-pass conduit, with said means for supplying water to said conduit comprising another communicative connection with said conduit and said main located upstream of said main from said aforementioned connection of said conduit and said main.
  • said by-pass conduit is disposed at a greater vertical elevation than the elevation level of said main and wherein said by-pass conduit has a water-carrying portion that is disposed in spaced relation to, and substantially parallel to, said duct a predetermined amount that is less than the maximum distance that will permit minimum velocity flow in both of said main duct and said by-pass conduit, for a given preselected capacity of said supplying means.
  • a hydraulic transportation system for waste conveyance comprising a waste discharge main, a conduit communicatively connected to said main for carrying waste thereto, a wastereceiving chamber associated with said conduit for supplying waste thereto, means for supplying water to said chamber, means for shutting off the water supply to the chamber during placement of waste therein and for resuming the supply of water to the chamber after placement of waste therein for washing of waste through the conduit to the main, and pusher means carried in the chamber for pushing waste disposed therein into said conduit.
  • a hydraulic transportation system for waste conveyance comprising a longitudinal conduit for carrying liquid therethrough, a chamber opening into said conduit, a closable waste inlet duct opening into said chamber for delivery of solid waste thereto, pusher means within said chamber for traversing said chamber and pushing solid waste into said conduit, means for actuating said pusher means, and means selectively operable for shutting off liquid communication between said conduit and said chamber when said duct opening is opened for receipt of waste and for closing said opening and for permitting liquid communication between said conduit and said chamber for flooding said chamber for facilitating transfer of solids from said chamber to said conduit, with the transverse cross-sectional interior size of said conduit being at least as great as the cross-sectional interior size of said chamber, as measured transverse to the path of movement of said pushing means.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • Refuse Collection And Transfer (AREA)
  • Paper (AREA)
US16501A 1970-03-04 1970-03-04 Hydraulic transportation system Expired - Lifetime US3653720A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4114955A (en) * 1976-09-17 1978-09-19 Toyo Denki Kogyosho Co., Ltd. Method and apparatus for transferring material with the use of a fluid
US20120308314A1 (en) * 2010-02-12 2012-12-06 Maricap Oy Method and apparatus for handling material in a pneumatic materials handling system
US20150117967A1 (en) * 2012-05-07 2015-04-30 Maricap Oy Method and apparatus for handling material in a pneumatic materials handling system
US20150321844A1 (en) * 2012-07-02 2015-11-12 Maricap Oy Method and apparatus for handling material in a pneumatic materials handling system
US10399799B2 (en) * 2013-07-30 2019-09-03 Maricap Oy Method and apparatus for feeding in and handling waste material
US20200141431A1 (en) * 2016-05-23 2020-05-07 Xiaoying Ning Water Flow Accelerator

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4453864A (en) * 1982-11-08 1984-06-12 Conoco Inc. Injection of solids into a high pressure slurry stream
GB2186539A (en) * 1983-12-24 1987-08-19 Mmd Design & Consult Fluid conveyor feeder

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1618395A (en) * 1924-04-01 1927-02-22 Frederic L Ward Hydraulic conveyer
US2621156A (en) * 1947-04-10 1952-12-09 Bowser Inc Method for feeding filter aid
US3178233A (en) * 1963-08-28 1965-04-13 Hughes Tool Co Loading apparatus for bulk transport systems

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1618395A (en) * 1924-04-01 1927-02-22 Frederic L Ward Hydraulic conveyer
US2621156A (en) * 1947-04-10 1952-12-09 Bowser Inc Method for feeding filter aid
US3178233A (en) * 1963-08-28 1965-04-13 Hughes Tool Co Loading apparatus for bulk transport systems

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4114955A (en) * 1976-09-17 1978-09-19 Toyo Denki Kogyosho Co., Ltd. Method and apparatus for transferring material with the use of a fluid
US20120308314A1 (en) * 2010-02-12 2012-12-06 Maricap Oy Method and apparatus for handling material in a pneumatic materials handling system
US9156612B2 (en) * 2010-02-12 2015-10-13 Maricap Oy Method and apparatus for handling material in a pneumatic materials handling system
US20150117967A1 (en) * 2012-05-07 2015-04-30 Maricap Oy Method and apparatus for handling material in a pneumatic materials handling system
US9434542B2 (en) * 2012-05-07 2016-09-06 Maricap Oy Method and apparatus for handling material in a pneumatic materials handling system
US20150321844A1 (en) * 2012-07-02 2015-11-12 Maricap Oy Method and apparatus for handling material in a pneumatic materials handling system
US10399799B2 (en) * 2013-07-30 2019-09-03 Maricap Oy Method and apparatus for feeding in and handling waste material
US20200141431A1 (en) * 2016-05-23 2020-05-07 Xiaoying Ning Water Flow Accelerator

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CA937612A (en) 1973-11-27
GB1322231A (en) 1973-07-04
FR2081671A1 (enExample) 1971-12-10
FR2081671B1 (enExample) 1976-02-06

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Owner name: HOBART CORPORATION A CORP OF DE.

Free format text: ASSIGNS AS OF JANUARY 22, 1985 THE ENTIRE INTEREST;ASSIGNOR:HOBART CORPORATION;REEL/FRAME:004420/0490

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